These are basic punctuation rules. Learn how to use a period, a comma, a question mark, an exclamation point, and quotation marks.


A period goes at the end of a sentence.


There are many ways to use a comma. Here are two examples:

  • Before the word but in between two clauses
  • Before the word and in between two clauses

Another way to use a comma is when you answer a yes-no question:

Use a comma after an introductory clause:

You can use time clauses as introductory phrases. Here are some time clauses:

When you graduate, you can go to a new school.

In 1981, nobody had an email address.

Before we met, Ana lived in Singapore.

Yesterday, there were a lot of frogs in our backyard.

In the future, everyone will have a computer.

At 9:30, I’m going to come home.

, comma

? question mark

! exclamation point

” quotation marks